C语言实现迷宫小游戏

代码如下，时间太晚，有空补注释：

 #include<stdio.h>
 #include<string.h>
 #include<time.h>
 #include<stdlib.h>
 #include<windows.h>
 #define n 21
 #define m 37
 #define up 1
 #define down 2
 #define left 3
 #define right 4
 #define Key_Up 72
 #define Key_Down 80
 #define Key_Right 77
 #define Key_Left 75
 typedef struct Point
 {
     int x;
     int y;
     int pos;
 }point;
 HANDLE h_out_buf;//缓冲技术解决闪屏
 COORD coord={,};
 DWORD bytes=;
 char data[n+][m*+];
 int maze[n+][m+];
 point p[];
 int l=;
 point start,end;
 void add(point t)
 {
     p[l]=t;
     l++;
 }
 void add_neibor(point t)//将当前点周围的邻墙加入数组中
 {
     point q;
     if(t.x+<=n)
     {
         q=t;
         q.x=t.x+;
         q.pos=down;
         add(q);
     }
     if(t.x->=)
     {
         q=t;
         q.x=t.x-;
         q.pos=up;
         add(q);
     }
     if(t.y+<=m)
     {
         q=t;
         q.y=t.y+;
         q.pos=right;
         add(q);
     }
     if(t.y->=)
     {
         q=t;
         q.y=t.y-;
         q.pos=left;
         add(q);
     }
 }
 void del(int index)
 {
     int i;
     for(i=index;i<l-;i++)
         p[i]=p[i+];
     l--;
 }
 void show_maze()
 {
     int i,j;
     for(i=;i<n+;i++)
     {
         for(j=;j<m+;j++)
         {
             if(!maze[i][j])
             {
                 data[i][*j]='*';
                 data[i][*j+]=' ';
             }
             else if(maze[i][j]==)
             {
                 data[i][*j]=' ';
                 data[i][*j+]=' ';
             }
             else if(maze[i][j]==)
             {
                 data[i][*j]=;
                 data[i][*j+]=' ';
             }
             else
             {
                 data[i][*j]=;
                 data[i][*j+]=' ';
             }
         }
     }
     for(i=;i<n+;i++)
     {
         coord.Y=i;
         WriteConsoleOutputCharacterA(h_out_buf, data[i], *j, coord, &bytes);
     }
     SetConsoleActiveScreenBuffer(h_out_buf);
 }
 void creat_maze()
 {
     int i,j,x,y;
     point q;
     memset(maze,,sizeof(maze));
     srand((unsigned)time(NULL));
     start.x=;
     start.y=;
     end.x=n;
     end.y=m;
     maze[][]=;
     add_neibor(start);
     while(l)
     {
         int r=rand()%l;
         if(p[r].pos==up)
         {
             x=p[r].x-;
             y=p[r].y;
         }
         if(p[r].pos==down)
         {
             x=p[r].x+;
             y=p[r].y;
         }
         if(p[r].pos==left)
         {
             x=p[r].x;
             y=p[r].y-;
         }
         if(p[r].pos==right)
         {
             x=p[r].x;
             y=p[r].y+;
         }
         if(maze[x][y]==)
         {
             maze[p[r].x][p[r].y]=;
             maze[x][y]=;
             q.x=x;
             q.y=y;
             add_neibor(q);
         }
         del(r);
     }
     maze[start.x][start.y]=;
     maze[end.x][end.y]=;
 }
 void win()
 {
     int i,j;
     char a[]="CONGRATULATIONS!";
     char b[]="YOU WIN THIS GAME!";
     char c[]="AUTHOR:天道铸魂";
     char d[]="按任意键结束游戏";
     memset(data,,sizeof(data));
     for(i=;i<n+;i++)
     {
         for(j=;j<m+;j++)
         {
             data[i][*j]=' ';
             data[i][*j+]=' ';
         }
     }
     strcpy(data[]+,a);
     strcpy(data[]+,b);
     strcpy(data[]+,c);
     strcpy(data[]+,d);
     for(i=;i<n+;i++)
     {
         coord.Y=i;
         WriteConsoleOutputCharacterA(h_out_buf, data[i], *j, coord, &bytes);
     }
     SetConsoleActiveScreenBuffer(h_out_buf);
 }
 void play_game()
 {
     int key1,key;
     point now;
     now.x=now.y=;
     while()
     {
         show_maze();
         if(now.x==n&&now.y==m)
         {
             system("cls");
             win();
             break;
         }
         key1=getch();
         key=getch();
         if(key==Key_Up)
         {
             if(now.x->)
             {
                 if(maze[now.x-][now.y])
                 {
                     maze[now.x][now.y]=;
                     now.x--;
                     maze[now.x][now.y]=;
                 }
             }
         }
         else if(key==Key_Down)
         {
             if(now.x+<=n)
             {
                 if(maze[now.x+][now.y])
                 {
                     maze[now.x][now.y]=;
                     now.x++;
                     maze[now.x][now.y]=;
                 }
             }
         }
         else if(key==Key_Left)
         {
             if(now.y->)
             {
                 if(maze[now.x][now.y-])
                 {
                     maze[now.x][now.y]=;
                     now.y--;
                     maze[now.x][now.y]=;
                 }
             }

         }
         else if(key==Key_Right)
         {
             if(now.y+>)
             {
                 if(maze[now.x][now.y+])
                 {
                     maze[now.x][now.y]=;
                     now.y++;
                     maze[now.x][now.y]=;
                 }
             }
         }
     }
 }
 void start_game()
 {
     creat_maze();
     play_game();
 }
 int main()
 {
     h_out_buf = CreateConsoleScreenBuffer(GENERIC_WRITE,FILE_SHARE_WRITE,NULL,CONSOLE_TEXTMODE_BUFFER,NULL);
     CONSOLE_CURSOR_INFO cci;
     cci.bVisible = ;
     cci.dwSize = ;
     SetConsoleCursorInfo(h_out_buf, &cci);
     start_game();
     return ;
 }